Disclaimer, I have a ChatGPT subscription. I'm really looking forward to this application.
Why? Here's an example. I use Matlab a lot for my research, but I do not know the Matlab language. It's not something I really need to know to do my research.
Here's where ChatGPT came in. I needed to do something in Matlab the other day that required knowing some Matlab language. I found example code that was close enough to what I needed to do, fed that into ChatGPT asking for modifications for my specific use. After a little back and forth for about 3 minutes, I had code doing exactly what I needed to do.
This was to automate something I would otherwise have done manually (something that would take at least 30 minutes, maybe an hour, to do). Or, I could have found someone who knew Matlab to help me. I'm in academia (which means I don't just have money sitting around to pay someone to do it) and while I have colleagues who know Matlab who would be willing to help, it would take them some time to figure it out and get back to me -- pushing what I wanted to get done out some days or even weeks.
So in any case, no more than 5 minutes "talking" with ChatGPT saved me at least 30-60 minutes of tedious work or waiting some days for someone else to graciously help out.
I use ChatGPT almost daily. While I don't have a specific quantification of time it's saved me, my estimates so far is that it's saved me months of work over the past few months. Even more, it's allowed me to do things I would not have attempted because I don't have time or resources to learn or do a deeper dive into (Python|Matlab|R). It gives me more time for writing and getting things done, rather than having to spend a lot of time (or non-existent funds) getting someone else to do what I need for a one-time analysis.